PT-2025-12673 · Cilium · Cilium
Oblazek
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Published
2025-03-24
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Updated
2025-03-28
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CVE-2025-30163
CVSS v3.1
4.7
Medium
| Vector | AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N |
Name of the Vulnerable Software and Affected Versions
Cilium versions 1.16.0 through 1.16.7
Cilium versions 1.17.0 through 1.17.1
Description
The issue affects Cilium, a networking, observability, and security solution with an eBPF-based dataplane. Node-based network policies, specifically those using
fromNodes and toNodes, will incorrectly permit traffic to and from non-node endpoints that share the labels specified in these policy sections. This occurs because node-based network policy is not properly enforced, allowing unintended access. The issue is not related to any specific number of potentially affected devices worldwide or real-world incidents.Recommendations
For Cilium versions 1.16.0 through 1.16.7, update to version 1.16.8 or later to resolve the issue.
For Cilium versions 1.17.0 through 1.17.1, update to version 1.17.2 or later to resolve the issue.
As a temporary workaround, ensure that the labels used in
fromNodes and toNodes fields are used exclusively by nodes and not by other endpoints to mitigate the risk of exploitation.Exploit
Fix
Incorrect Authorization
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Weakness Enumeration
Related Identifiers
Affected Products
Cilium